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From: Junio C Hamano <gitster@pobox•com>
To: Felipe Contreras <felipe.contreras@gmail•com>
Cc: git@vger•kernel.org, Sverre Rabbelier <srabbelier@gmail•com>,
	Richard Hansen <rhansen@bbn•com>,
	Ramsay Jones <ramsay@ramsay1•demon.co.uk>
Subject: Re: [PATCH v5 06/10] fast-export: add new --refspec option
Date: Wed, 06 Nov 2013 13:00:42 -0800	[thread overview]
Message-ID: <xmqq38n98cud.fsf@gitster.dls.corp.google.com> (raw)
In-Reply-To: <CAMP44s246M5DaeX80tqzfjRWnbE4vKh-vp_tLW-qAQUFFPsP0Q@mail.gmail.com> (Felipe Contreras's message of "Thu, 31 Oct 2013 12:41:31 -0600")

Felipe Contreras <felipe.contreras@gmail•com> writes:

> On Thu, Oct 31, 2013 at 12:26 PM, Junio C Hamano <gitster@pobox•com> wrote:
>> Felipe Contreras <felipe.contreras@gmail•com> writes:
>>
>>> +test_expect_success 'use refspec' '
>>> +     git fast-export --refspec refs/heads/master:refs/heads/foobar master | \
>>> +             grep "^commit " | sort | uniq > actual &&
>>
>> It feels somewhat redundant that you have to twice say that you are
>> pushing your "master", once with --refspec and then the branch
>> name.  Is this the best we can do?
>
> As this has been discussed before and no other solution came forward, yes.

We need to take that "no other solution came forward" with a grain
of salt.  After all, this is your itch, and if nobody was interested
in helping you (which I think that we both understand entirely
plausible, given the recent history), it only means you didn't think
of any other solution.

I didn't think things through, but at the external UI level, I see a
possibility of a nicer way to express the above.

In our "push" refspec (and export is about pushing what we have), a
colonless refspec A is a short-hand for A:A, so the traditional

	git fast-export master

can be thought of, in a new world order with a patch that lets you
do a ref mapping, a short-hand for an identical mapping:

	git fast-export master:master

It follows that the syntax naturally support

	git fast-export refs/heads/master:refs/heads/foobar

I would think.

That approach lets you express ref mapping without a new option
--refspec, which goes contrary to existing UI for any commands in
Git (I think nobody takes refspec as a value to a dashed-option in
the transport; both in fetch and push, they are proper operands,
i.e. command line arguments to the command), no?

  reply	other threads:[~2013-11-06 21:00 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-10-31  9:36 [PATCH v5 10/10] transport-helper: add support to delete branches Felipe Contreras
2013-10-31  9:36 ` [PATCH v5 00/10] transport-helper: updates Felipe Contreras
2013-10-31 17:59   ` Max Horn
2013-10-31 18:10     ` Junio C Hamano
2013-10-31 18:30       ` Felipe Contreras
2013-10-31 18:34       ` Junio C Hamano
2013-10-31 18:41       ` Max Horn
2013-11-11  5:09   ` [PATCH v5 11/10] test-hg.sh: tests are now expected to pass Richard Hansen
2013-11-11  5:10   ` [PATCH v5 12/10] remote-bzr: support the new 'force' option Richard Hansen
2013-11-11 11:51     ` Felipe Contreras
2013-11-11 18:12       ` Richard Hansen
2013-11-11 18:15         ` Felipe Contreras
2013-10-31  9:36 ` [PATCH v5 01/10] transport-helper: fix extra lines Felipe Contreras
2013-10-31 18:16   ` Junio C Hamano
2013-10-31  9:36 ` [PATCH v5 08/10] fast-import: add support to delete refs Felipe Contreras
2013-10-31 18:41   ` Max Horn
2013-10-31  9:36 ` [PATCH v5 05/10] fast-export: improve argument parsing Felipe Contreras
2013-10-31  9:36 ` [PATCH v5 06/10] fast-export: add new --refspec option Felipe Contreras
2013-10-31 18:26   ` Junio C Hamano
2013-10-31 18:41     ` Felipe Contreras
2013-11-06 21:00       ` Junio C Hamano [this message]
2013-11-06 22:14         ` Jeff King
2013-11-06 22:31           ` Junio C Hamano
2013-11-06 22:41             ` Junio C Hamano
2013-11-08 23:44           ` Junio C Hamano
2013-11-09  0:06             ` Jeff King
2013-11-07  1:00         ` Felipe Contreras
2013-10-31  9:36 ` [PATCH v5 03/10] transport-helper: add 'force' to 'export' helpers Felipe Contreras
2013-10-31 18:21   ` Junio C Hamano
2013-10-31 18:55     ` Felipe Contreras
2013-10-31 19:07       ` Junio C Hamano
2013-11-01 14:49         ` Junio C Hamano
2013-11-01 15:37           ` Felipe Contreras
2013-11-01 16:35             ` Junio C Hamano
2013-11-01 17:28               ` Eric Sunshine
2013-11-11  5:01   ` [PATCH] fixup! " Richard Hansen
2013-10-31  9:36 ` [PATCH v5 09/10] fast-export: add support to delete refs Felipe Contreras
2013-10-31 19:29   ` Max Horn
2013-10-31 19:41     ` Felipe Contreras
2013-10-31 19:47       ` Max Horn
2013-10-31 19:53         ` Felipe Contreras
2013-10-31 22:38           ` Max Horn
2013-10-31  9:36 ` [PATCH v5 07/10] transport-helper: add support for old:new refspec Felipe Contreras
2013-10-31  9:36 ` [PATCH v5 04/10] transport-helper: check for 'forced update' message Felipe Contreras
2013-10-31  9:36 ` [PATCH v5 02/10] transport-helper: don't update refs in dry-run Felipe Contreras

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